A5091826553- Animal Disease Management and Epidemiology
- Influenza Virus Research Studies
- Viral Infections and Vectors
- Viral gastroenteritis research and epidemiology
- Zoonotic diseases and public health
- Respiratory viral infections research
- COVID-19 epidemiological studies
- Animal Virus Infections Studies
- SARS-CoV-2 and COVID-19 Research
- Environmental Toxicology and Ecotoxicology
- Wildlife Ecology and Conservation
- Rangeland and Wildlife Management
- Toxic Organic Pollutants Impact
- Ecology and Vegetation Dynamics Studies
- Avian ecology and behavior
- Animal Ecology and Behavior Studies
- Species Distribution and Climate Change
- Census and Population Estimation
- Oil Spill Detection and Mitigation
- Infection Control and Ventilation
- Animal Nutrition and Physiology
- Fish Ecology and Management Studies
- Air Quality and Health Impacts
- Yersinia bacterium, plague, ectoparasites research
- Pharmaceutical and Antibiotic Environmental Impacts
United States Department of Agriculture
2014-2024
National Wildlife Research Center
2009-2024
Animal and Plant Health Inspection Service
2015-2024
Collins College
2021-2023
National Wildlife Health Center
2021
Life Services (United States)
2017-2021
Utah Department of Natural Resources
2021
Utah Division of Wildlife Resources
2021
United States Geological Survey
2021
Colorado State University
2006-2018
Recognition and analysis of spatial autocorrelation has defined a new paradigm in ecology. Attention to pattern can lead insights that would have been otherwise overlooked, while ignoring space may false conclusions about ecological relationships. We used Gaussian autoregressive models, fit with widely available software, examine breeding habitat relationships for three common Neotropical migrant songbirds the southern Appalachian Mountains North Carolina Tennessee, USA. In preliminary...
Widespread human SARS-CoV-2 infections combined with human-wildlife interactions create the potential for reverse zoonosis from humans to wildlife. We targeted white-tailed deer (Odocoileus virginianus) serosurveillance based on evidence these have angiotensin-converting enzyme 2 receptors high affinity SARS-CoV-2, are permissive infection, exhibit sustained viral shedding, can transmit conspecifics, social behavior, and be abundant near urban centers. evaluated 624 prepandemic postpandemic...
We detected Eurasian-origin highly pathogenic avian influenza A(H5N1) virus belonging to the Gs/GD lineage, clade 2.3.4.4b, in wild waterfowl 2 Atlantic coastal states United States. Bird banding data showed widespread movement of within Flyway and between neighboring flyways northern breeding grounds.
Abstract SARS-CoV-2 is a zoonotic virus with documented bi-directional transmission between people and animals. Transmission of from humans to free-ranging white-tailed deer ( Odocoileus virginianus ) poses unique public health risk due the potential for reservoir establishment where variants may persist evolve. We collected 8,830 respiratory samples across Washington, D.C. 26 states in United States November 2021 April 2022. obtained 391 sequences identified 34 Pango lineages including...
Abstract In August 2020, outbreaks of coronavirus disease were confirmed on mink farms in Utah, USA. We surveyed mammals captured and around for evidence infection or exposure. Free-ranging mink, presumed domestic escapees, exhibited high antibody titers, suggesting a potential severe acute respiratory syndrome 2 transmission pathway to native wildlife.
Point-count surveys are often used to collect data on the abundance and distribution of birds, generally as an index relative abundance. Valid comparison these indices assumes that detection process is comparable over space time. These restrictive assumptions can be eliminated by estimating probabilities directly. We generalize a recently proposed removal model for using time-of-detection approach, which account more sources variation in point-count data. This method specifically designed...
Abstract Our ability to infer unobservable disease‐dynamic processes such as force of infection (infection hazard for susceptible hosts) has transformed our understanding disease transmission mechanisms and capacity predict dynamics. Conventional methods inferring FOI estimate a time‐averaged value are based on population‐level processes. Because many pathogens exhibit epidemic cycling is the result acting across scales individuals populations, flexible framework that extends dynamics links...
Background Wild mallards (Anas platyrhychos) are considered one of the primary reservoir species for avian influenza viruses (AIV). Because AIV circulating in wild birds pose an indirect threat to agriculture and human health, understanding ecology developing risk assessments surveillance systems prevention disease is critical. Methodology/Principal Findings In this study, were experimentally infected with H4N6 subtype by oral inoculation or contact contaminated water source. Cloacal swabs,...
Abstract In November 2014, a Eurasian strain H5N8 highly pathogenic avian influenza virus was detected in poultry Canada. Introduced viruses were soon the United States and within six months had spread to 21 states with more than 48 million affected. an effort study potential mechanisms of H5 virus, Department Agriculture coordinated several epidemiologic investigations at farms. As part those efforts, we sampled synanthropic birds mammals five infected uninfected farms northwest Iowa for...
In 2015, the mcr-1 gene was discovered in Escherichia coli domestic swine China that conferred resistance to colistin, an antibiotic of last resort used treating multi-drug resistant bacterial infections humans. Since then, found other human and animal populations, including wild gulls. Because gulls could disseminate gene, we conducted experiment assess whether are readily colonized with positive E. coli, their shedding patterns, transmission among conspecifics, environmental deposition....
Abstract Broad-scale data show SARS-CoV-2 occurrence in white-tailed deer throughout much of their range the conterminous United States and reinforce findings considerable infection exposure. Results shed light on both current infections prior exposure, with prevalence decreasing over time seroprevalence increasing. One-Sentence Summary White-tailed are infected with, have been exposed to, US.
While the importance of spatial scale in ecology is well established, few studies have investigated impact data grain on conservation planning outcomes. In this study, we compared species richness hotspot and representation networks developed at five sizes. We used distribution maps for mammals birds by Arizona New Mexico Gap Analysis Programs (GAP) to produce 1-km2, 100-km2, 625-km2, 2500-km2, 10 000-km2 grid cell resolution maps. these generate (95th quantile) each taxon state. Species...
Summary Although population surveys often provide information on multiple species, these data are rarely analysed within a multiple‐species framework despite the potential for more efficient estimation of parameters. We have developed modelling that uses similarities in capture/detection processes among species to model parsimoniously. present examples this approach applied distance, time detection and observer sampling avian point count data. Models included as covariate individual effects...
Abstract Widespread human SARS-CoV-2 infections combined with human-wildlife interactions create the potential for reverse zoonosis from humans to wildlife. We targeted white-tailed deer ( Odocoileus virginianus ) serosurveillance based on evidence these have ACE2 receptors high affinity SARS-CoV-2, are permissive infection, exhibit sustained viral shedding, can transmit conspecifics, and be abundant near urban centers. evaluated 624 pre- post-pandemic serum samples wild four U.S. states...
Background Avian influenza viruses are known to productively infect a number of mammal species, several which commonly found on or near poultry and gamebird farms. While control rodent species is often used limit avian virus transmission within among outbreak sites, few studies have investigated the potential role these in dynamics. Methodology/Principal Findings We trapped sampled synanthropic mammals farm Idaho, USA that had recently experienced low pathogenic outbreak. Six six house mice...
Understanding pathogen emergence in new host species is fundamental for developing prevention and response plans human animal health. We leveraged a large-scale surveillance dataset coordinated by United States Department of Agriculture, Animal Plant Health Inspection Service State Natural Resources Agencies to quantify the outbreak dynamics SARS-CoV-2 North American white-tailed deer (Odocoileus virginianus; WTD) throughout its range States. Local epidemics WTD were well approximated...
Emerging infectious diseases with zoonotic potential often have complex socioecological dynamics and limited ecological data, requiring integration of epidemiological modeling surveillance. Although our understanding SARS-CoV-2 has advanced considerably since its detection in late 2019, the factors influencing introduction transmission wildlife hosts, particularly white-tailed deer ( Odocoileus virginianus ), remain poorly understood. We use a Susceptible-Infected-Recovered-Susceptible model...
Recognition and analysis of spatial autocorrelation has defined a new paradigm in ecology. Attention to pattern can lead insights that would have been otherwise overlooked, while ignoring space may false conclusions about ecological relationships. We used Gaussian autoregressive models, fit with widely available software, examine breeding habitat relationships for three common Neotropical migrant songbirds the southern Appalachian Mountains North Carolina Tennessee, USA. In preliminary...
A United States interagency avian influenza surveillance plan was initiated in 2006 for early detection of highly pathogenic viruses (HPAIV) wild birds. The included a variety bird sampling strategies including the testing fecal samples from aquatic areas throughout April through December 2007. Although HPAIV not detected this effort we were able to obtain 759 that positive low virus (LPAIV). We used 136 DNA sequences obtained these along with public sequence database phylogenetic assessment...
Abstract: The prevailing fragmentation paradigm predicts that large, intact forests are acting as population sources for Neotropical migrant landbirds. We used the Wood Thrush ( Hylocichla mustelina ) a model evaluating role Great Smoky Mountains National Park (the largest national park in eastern United States) may play maintaining regional songbird populations. estimated annual productivity of Thrushes by combining observations on birds' distribution, abundance, and with estimates habitat...